If a feed is uploaded using the FTP/SFTP, it was accessible by the API. We now provide you with the flexibility to access and update your offers with Bing in any form, whether it’s through a manual feed, FTP/SFTP, or via API. If uploading via FTP/SFTP, the file name of .tsv, .txt, or .xml files have to match the file name specified for a feed’s settings. In the case of compressed text format, the compressed .txt file inside the archive (.zip, .gz, .gzip) must have the matching file name.
With this feature, you can now:
When can I use the API and FTP/SFTP together?
Though we recommend not using the same feed using FTP/SFTP and the API, if you do so, you must wait until the FTP/SFTP process completes before using the API to update the feed. The only exception to using FTP/SFTP and the API to update the same feed at the same time is if you use the API to update only the "price," "salePrice," and "salePriceEffectiveDate" fields of the feed.